Vascular Plants of Wangsincheon Stream and Chilpyeongcheon Stream in Gyeongju City
본 연구는 경주시에 위치한 지방하천인 왕신천과 칠평천의 생태계와 환경을 유지하고 관리하는데 필요한 생태정보인 관속식물상을 조사 및 분석하는데 목적이 있다. 조사범위는 저수로, 둔치, 제방 및 주요 하천공간을 대상으로 하였으며, 연구결과를 요약하면 다음과 같다. 전체 하천의 분류군 현황은 103과 323속 478종 8아종 34변종 5품종 3잡종 2재배변종의 530분류군이며, 왕신천은 394분류군, 칠평천은 441분류군이었다. 희귀식물은 모감주나무 1분류군이며, 한국특산식물은 은사시나무, 키버들, 해변싸리, 참좁쌀풀, 병꽃나무, 백운산원추리 6분류군이었다. 식물구계학적 특정식물은 25분류군이며, Ⅳ등급과 Ⅲ등급은 각 3분류군, Ⅱ등급은 4분류군, Ⅰ등급은 15분류군이었다. 침입외래식물은 87분류군이며, 생태계교란 생물은 환삼덩굴, 애기수영, 가시박, 돼지풀, 단풍잎돼지풀, 가시상추, 미국쑥부쟁이 7분류군이었다.
The purpose of this study is to survey and analyze the vascular plants distributed in Wangsincheon stream and Chilpyeongcheon stream, local rivers located in Gyeongju-si, to establish ecological data necessary to maintain and manage the river ecosystem and environment. The scope of the investigation targeted waterways, watersides, banks, and major river spaces, and the research results are summarized as follows. The numbers of taxa in whole sites were 530 taxa including 103 families, 323 genera, 478 species, 8 subspecies, 34 varieties, 5 forms, 3 hybrids, and 2 cultivar., and there were 394 taxa in Wangsincheon stream, and 441 taxa in Chilpyeongcheon stream. The rare plant was Koelreuteria paniculata and Korean endemic plants were 6 taxa including Populus × tomentiglandulosa, Salix koriyanagi, Lespedeza maritima, Lysimachia coreana, Weigela subsessilis, and Hemerocallis hakuunensis. The floristic target species were 25 taxa including 3 taxa each of grade Ⅳ and grade Ⅲ, 4 taxa of grade Ⅱ, and 15 taxa of grade Ⅰ. The invasive alien plants were 87 taxa, and ecosystem disturbing species were 7 taxa including Humulus scandens, Rumex acetosella, Sicyos angulatus, Ambrosia artemisiifolia, Ambrosia trifida, Lactuca seriola, and Symphyotrichum pilosum.